Boiler cleaner



March l, 1932.I

N. L. YSNQW 1,847,417

BOILER CLEANER Original Filed May 4, 1925 6 Sheets-Sheet l 2Q g: M s

INVENTOR. QC /ymfwfyw/y mm Mf- March 1, 1932. N L, SNOW 1,847,417

BOILER CLEANER Original Filed May 4, 1925 6 Sheets-Sheet 2 IN V EN TOR. /l//w/V Z. www

Hwy-mm. W fla/mb H5 A TT ORNE Y March 1, 1932y N, SNOW 1,847,417

BOILER CLEANER Original Filed May 4, 1925 e sheets-sheet s INVENTOR. //ae/W/V .5A/0 w A TTORNE Y.

March 1, 1932. N. 1 SNQW 1,847,417

BOILER CLEANER Original Filed May 4. 1925 6 Sheets-Sheet 4 INVENTOR. /Va/emsw J/vmf/ A TTORNE Y.

March 1, 1932.

Original Filed May'4, 1925 s sneetssheet 5 da M fff 40. 3f 4c 0 H3 56 I 74 6N yl J6 F915 ya /f2 .jf I if, .f/ K2 f l d? f .Tf l 5 l 59 7 /4 /J' [a g5 M? March 1, 1932. N. L. sNow 1,847,417

BOILER CLEANER Original Filed May 4, 1925 6 Sheets-Sheet 6 in #arma/w. 910W l 'Il l v v f I M ATTORNEYS Patented Mar. 1, 1932 STATES PATENT ori-ion i NORMAN L. SNOW, OF NEW CANAAN, CONNECTICUT, ASSIGNOR TO DIAIv'IGND POWER SPECALTY CORPORATION, OF DETROIT, MICHIGAN,

A CORPORATON OF MICHIGAN BOILER CLEANER Application filed May 4, 1925, Serial No. 27,976. Renewed November 18, 1.930.

The invention relates to boiler cleaners and refers more particularly toa boiler cleaner adapted for use in connection with a locomotive power plant. One of the objects of the invention is to provide means for automatically operating the boiler cleaner after the locomotive has travelled a predetermined distance. A further object is to provide means whereby the boiler cleaner is operatively connected with a moving part of the locomotive whereby the latter furnishes the necessary lower to actuate the boiler cleaner. A further feature resides in the provision of valvecontrolled means for automatically shutting off the supply of cleaning fluid after the boiler cleaner has operated a predetermined time.

Referring to the drawings z Figure 1 represents a side elevation of the cab end of a locomotive showing one form of my invention applied thereto;

Figure 2 is a sectional view through 2-2 of Figure 1;

Figure 3 is a sectional view through 3-3 of Figure 1;

Figure 4 is a detailed view showing the mechanism for producing a drive always in the same direction regardless of the direction of movement of the locomotive;

Figure 5 is a sectional view taken substantially on the line 5-5 of Figure 4;

Figure 6 is a sectional view taken substantially on the line 6-6 of Figure 4;

Figure 7 is a detailed view showing the driving connection for reciprocating the blower element;

Figure S is a detailed view showing the clutch mechanism;

Figure 9 is a fragmentary view showing the cam for unseating the cleaning fluid supply valve;

FigurerQA is a detailed view of the automatic shut-off valve;

Figure 10 is a sectional view through the blower showing the partsL in retracted position;

Figure 11 is a corresponding view showing the parts in projected position;

Figure 12 is a view along 12--12 of Figure 11;

Figure 13 is a view along 13-13 of Figure 11;

Figure 14 is an end view of the blower shown in Figure 11; y

Figure 15 is a sectional view through a modified construction of the boiler cleaner;

Figure 16 is a sectional view through 16S-16 of Figure 15;

Figure 17 is a view corresponding to Figure 2 showing the manner of operating the boiler cleaner shown in Figure l5; and

Figure 18 is a semi-diagrammatic view showing the piping system for supplying the cleaning fluid to the blower elements.

Referring to the drawings in which like reference characters indicate like parts, reference character A represents the cab end of a locomotive, B indicating the cab. The locomotive may be provided with firebox C, flue sheet D, boilerV tubes E, and driver or trailer F all of which parts may be of usual or other preferred construction. G indicates a boiler cleaner which may be of the blower type installed through one of the locomotive side wall water legs H and nipple 10. rEhe blower G maybe mounted on suitable brackets 11 or supported in any other suitable manner.

ln order that cleaning fluid may be automatically supplied to the blower after predetermined distance has been travelled by the 80 locomotive the following mechanism is provided; l

K indicates a gear boX which may be supported by suitable brackets 12 secured to the side of the locomotive; the gear box K hous- 85 ing a train of reduction gearing L; the driving end of which is provided with a shaft 12 having an end projecting away from Jdie side of the boiler water leg and journaled in a bearing 13 of the depending bracket 14. The 90 lower end of bracket 14 journals a shaft 15 adapted to be rotated by a pulley or the like 16, which is keyed to shaft 15. For supply-A ing power to rotate the pulley 16 l may connect the pulley to any moving part of the 95 locomotive. One manner of so driving the pulley is shown iii-Figure 1. 17 indicates the shaft upon which is mounted the trailer F. Located upon the shaft 17 is a driving pulley 137 thel shaft 17 preferably beingV extended 100 from pulley 25 by outwardly for receiving the pulley i8. Po wer from the trailer is communicated to the shaft by ieason of a belt 19 or the like for transferring rotative movement fro .i pulley to pulley 16. M represents a mechanism. for causing shaft 12 to always rotate in a given direction regardless of whether the' locomotive is travelling forward Such a provision, while not necessary, is desirable in causing e-i'iicient eperation blower. Referring to Figures 4, 5, and 6 the mechanism M comprises the following parts. N and @D indicate clutches, the clutch El having a hub part 2O fixedto shaft 15 gl the hub is provided with the wedge faces 2l within the annular flange 22 of pulley 23, the latter being loosely mounted on shaft 15. Between the'faces 21 and the flange 22 the rolls operate to cause driving engagement between shaft 15' and pulley 23 when shaft 15 is r tated in one direction, clockwise as shown in Figure 6 as will be readily understood. A like construction is embodied in clutch O exce at that the latter clutch is arran'fed with 2D its wedge faces arranged oppositely with those of the clutch N whereby, when shaft 15 rotates couiiterclockwiseV as viewed in Figure 6, clutch N will be disengaged and clutch C' will be enOaG'ed to establish a drive between b t:

shaft 15 and pulley 25. Loosely mounted on shaft 12 are pulleys 25 and 27, the former having drivenA connection with pulley 23 by an open belt 28 and the pulley 27 being driven a crossed belt 29. Pulley 26 carries a pawl 30 normally urged inwardly to engage the teeth 31 of ratchet 32 lined to shaft 12. Pulley 27 is likewise `provided with a pawl and ratchet mechanism whereby when one of the pulleys 26 or 2? is being driven from shaft 15 to rotate shaft 12' through the pawl and ratchet mechanism, the other of said pulleys will .remain idle, the idle pawlr permitting rotation of the shaft 12.

A From the foregoing mechanism will be ap- 1 parentr that regardless of the movement of the locomotive forwardly or in reversing the shaft 12 will be caused o rota-te always in a given direction.

The opposit-eend of the gear train Lis provided with a rotatable cam disk 33 provided with a cam face 34 adapted to engage valve stem 35 to unseat' valve 36'/ against the action` of a spring 37 normally keeping valve 36 against its seat 38.4 39 indicates a pipey for conducting a supply of cleaning fluid such as steam, air, or the like, to the line 40 andY thence to the blower G. 41 indicates av dra-in line which may ormay not be automatic in its operation; 42 indicates a bypass from supply pipe 39 and communicates with the chamber 43. -Cleaning iiuidA from chamber 43 is adapted to pass through port when valve 36 isunseated by the-cam 34, and thence pass through chamber 45; 46vis a pipe line leading from chamber 45 to the or backward.

or" the cylinder 47 where the cleaning fluid acts on a piston 48 to unseat valve 49 to permit cleaning fluid to pass from supply pipe 39 to the line 40. P indicates a slow-acting device for automatically shutting-off the supply of cleaning fluid to the cylinder 47 after a predetermined time has elapsed after the unseating of valve 36. Referring to Figure 9A the device P consists of a valve 50 controlling the passage of cleaning fluid in pipe 46, the valve 50 being normally held raised from its seat by the pressure of cleaning fluid in pipe 46 acting against the valve to urge the same upwardly against the action of spring 51 thus allowing cleaning fluid to pass to thek cylinder 47. 52 is a valve stem carrying piston 53' at its upper end, the piston operating in cylinder 54. 55 is a by-pass from pipe to the upper end of cylinder 54, the rate of flo-w of the cleaning fluid from the by-pass into the cylinder being controlled by an adjustable needle valve 56. 57 is a supporting bracket for supporting the cylinder in operation of this part of the device. After the cam 34'has acted to unseat valve 36, cleaning fluidA will be supplied. from pipe 39 and 42 to the chamber 45 and thence to pipe 46. Cleaning fluidA from pipe 46 acts to unseat valve 50 and! thence enters chamber 47 where it acts on piston 48 to unseat the valve 49 and thus supply cleaning fluid to the blower G. Cleaning fluid will also enter the bypass 55 and will enter cylinder 54 building up a pressureA therein. The rate at which such pressure is built up in cylinder 54 is determinable by the needle val-ve 56. vWhen the pressure cylinder 54 is sufficient the piston 53 aided by the action of spring 5l willr bem-ovedi toV sea-t valve 50 and thus shut ofi' the supply of cleaning fluid to' chamber 47 whereby the valve 49 will seat, shutting ofi the supply of cleaning i'iuid to the blower. v For'controlling the valve 49 independently of the distance traveled by the locomotive I may provide the by-pass pipe 57 extending from pipe 39 to a point convenient for cont-rol as withinl the' cab= B as indicated at B in Figure 1. Thus a control valve 58 may be provided whereby at any time desired cleaning fluid may be conducted from pipe 57 through pipe 59 to unseat valve 49 and cause the blower G to function.

In order to impart movement to the blower G from 'the reduction gear train L4 only when cleaning fluid is being supplied to the blower the mechanism shown in F igure 8 is provided. 60 indicates one of the cross shafts of the reduction gearing, the shaft 60fbeing axially movable and having an eri-tension 61 passing through cylinder 62 supported by bracket 63. 64 and 65 indicate gearsV of reduction gearing L, these gears being splined with the shaft 60 by reason ofthe key 66extendi'ng longitudinally of the shaft 60. 79 represents collars adapted to ,tension 61, the pulley 71 having a v'member 7 2 adapted maintain the proper relative position of the gears 6e and 65 within the gear box 71 is a pulley loosely mounted on the-shaft exbeing fixed with shaft 61. 741: represents a v shaft is moved to -zle referred to hereinafter.

1 fixed with the upper dicates a bearing bracket for the shaft 84.

" whole flue sheet. Further n mechanism asshown in piston fixed with shaft 61 and operablewith- .in the cylinder 62. The shaft 61 and partsl fixed therewith are urged outwardly from the boiler water leg by springs and 76 causing disengagement of the clutch faces 72 and 7 3. 77 is a pipe `communicating with the supply line 40. Thrust bearings 78 may be provided for taking up the thrust in the opposite movements of shaft 6() in operation of those parts of the device. Whenever cam 34 is disengaged from valve stem 35 or whenever cleaning fluid is not being directed to the blower G, the pipe 77 will be free of cleaning fluid thus permitting springs 7 5 and 7 6 to move the shaft 60 to the left or to the position shown in Figure 8. In such position, movement of the locomotive and hence reduction gearing L will not serve torotate the pulley 71 until cleaning fluid is being supplied to the blower through pipe 40; at such time cleaning fluid will enter cylinder 62 to act on the piston 7 4 whereby the the right engaging the clutch faces 72 and 78 to establish a driving connection from the reduction gearing to the pulley 71.

ulley 71 is connected through a belt 7 8 with a pulley 79 rotatably supported adjacent the blower G by a bracket 80. 81 indicates a pin extending outwardly from the face of pulley 79 for reciprocating the blower noz- 82 indicates a 'Y yoke having` a slot 88 within which the pin 81 It will be noted that as the pulley 7 9 will reciprocate the yoke which is acts. is rotated the pin 81 82 and consequently the shaft 84,

end of the yoke.

Shaft 84 carries a bevelled gear 84a meshing with a gear 846 fixed to a shaft 84o which `enters the side of the blower housing.

lt is desirable to locate a blower in each v-'of the side water walls of the boiler, each blower being adapted to direct cleaning fluid over substantially half of the flue sheet. However, a. single blower could be used if preferred having a capacity for cleaning the trol mechanism such as shown in Figure 1 could readily be adapted to control and operate a blower in each of the side wall water legs. I prefer however to provide such a Figure 1 on each side of the locomotive for controlling each of the blowers.

In detail the construction and operation of one of the blowers G may be as follows:

Located in each side of the water leg H is if desired the cons ablower G preferably of the type normally' housed within the water leg protected from the heat of the fireboxbut automatically projected forwardly into the firebox under the action of the cleaning fluid. Such a blower is shown in Figures 1() to 14. In general this type of bloweris provided with a discharge nozzle which upon being projected forwardly into the firebox under the influence of the cleaning fluid, is directed to discharge cleaning fluid against the boiler tube sheet for cleaning the same together with the boiler tubes and associated parts of the boiler which accumulate soot, dirt, and the like. The nozzle may be formed with one or more discharge orifices. In its projected position the nozzle of the blower is adapted to be rocked or oscillated in order to cause the j et of cleaning fluid to sweep over the tube sheet.

These blowers are located a suitable distance back of the tube sheet D with. their nozzles 89 directed toward the tube sheet. The blower is connected to the cleaning fluid supply line 40. Then the cleaning fluid is supplied to the blower the cleaning fluid passes through the line 40 and into the chainber 85 whence it acts on the plunger 86 and forces the same forward, carrying with it plunger tube 87 and compressing the spring I1 until the thrust bearing I2 is brought into contact with the spacer I3, the outer face of the thrust bearing bearing againstthe segmental gear 88.

The forwardend of the spacer I3 bears against the packing housing I4 which is rigidly secured to sleeve I5. The sleeve I5 is rigidly carried by the blower-housing as at I6. VAs the plunger 86 goes forwardunder the action of the cleaning fluid the nozzle is forced inside of the inner wall of the water leg as shown in Figure 11 and the jet of cleaning fluid from the nozzle 89 is directed against the tube sheet. It will be noted that the entire stream is concentrated through a single nozzle so that the cleaning fluid is played with greater force against a relatively small area of the tube sheet upon reciprocation of the shaft 811 within the limits set by the rod J2 xed to the housing and extending through the slot .Il on the lower part of the segmental gear 88. The plunger' tube 87 will turn the plunger 86 and the nozzle 89 through an arc of approximately 90 covering the boiler tubes in direct line with the nozzle either vertically the full height of the tube sheet, or if desired the nozzle could be arranged to discharge in a horizontal line. The segmental gear 88 is fixed, by' a set screw J6, on the plunger tube 87. Between plunger 86 and plunger tube 87 is located a spiderr H2, secured to tube 87 by set screws H3 which have inwardly extending fingers II.L engageable in the circumferential groove H5 of the rod J so as to prevent relativel longitudinal movement between rod J and the tube 87, but to permit relative rothe tation of these parts. H6 are. other set screws, for securing plun r 86 with the spider H2, the set screws H ulso servingl to loclr the'set screws H2 in place. As shown in Fig. "13, the cleaning' fluid is free to pass spider H2 in traveling longaudina'lly in plung r 8G.

The gearl2 iirredly mounted on the rod J as by a key Il, acting through the pinion 90 and the gear 91 cut in the base of the nozzle 89 is carried forward by the ratchet 92 as long as the segmental gear is turning to the left. lhen .the motion of the shaft 84 is reversed the gear K2 is held against free movement by a ratchet M pivotally mounted on the housing M2 frictionally mounted on the shaft J and likewise provided with a slot J5. The result of this is that the gear K2 initially moves with the housing M2 until the housing M2 is prevented from further movement by the rod J 2 in slot J5. rlhe gear K2 is then held stationarv so that continued movement oi Lne gear 88 moves plunger 87 relative to the shaft J to varv the angle et nozzle 89. The amount of this motion is limited by the ratio between the pinion 90 and the gear 91 and by the adjustment of the set screw 98 extending into slot J5 an d threaded in the opening la at the lowervend of the housing X12. This allows movement of the housing M2 with relation to the rod J". As the oscillatory movement of shaft 84 continues it will be seen that an in termittent circular movement is transmitted to the nozzle 89 and that this motion Vchanges the relation of the airis of the nozzle 89 to that of the plunger 8G, resulting in a changed direction of the cleaning fluid jet from the nozzle 89.

In operation before the cleaning fluid is supplied to line the spring I will hold the parts in the position shown in Figure 10, the

' nozzle being housed within the water. leg of the segmental gear clockwise as shown in 1 igure ie end of slotk J4' contacts with rod J 2 to prevent furtheroper-V the boiler. lVhen the cleaning Huid is ad-` mitted to the blower through piae 40 the nozzle 89 restricts the liow of cleaning fluid sufliciently so that'the plunger 86 will be projected forwardly carrying with it plunger tube 8.7 and rod J Vso that the segmental gear 88 will be 'carried forwardly on the plunger tube 8'? to mesh with the bevelled gear 94 driven bythe shaft 840, and the thrust bearing I2 will taire up the thrust through the spacer I3 and sleeve I2. The parts are now ready for operation by the shaft 84. As the shaft 84 is rotated by the yoke 82 to move 88 to the left or counterll' 14 pawl 92 will rotate gear K2 until tl ation of segmental 88. Baring this rof tation the housing M2 which is frictionally carried on shaft d also swings countercloclzwise by reason of its slot @I rlhus it will be seen that plunger 88 will have been. rocked with nozzle 89 without vrelative movement therebetween, the nozzle 89 throwing its jet of steam in a vertical path for the height of tube sheet.

When the shaft 84a is rocked in the opposite direction to rotate segmental gear 88 to the right or clockwise as shown in Figure 14, rod J", housing M2 frictionally mounted thereon, gear K2 and segmental gear 88 will allV rotate together until further rotation of the housing M2 is prevented` by reason 0f set screw 93 contacting with the rod.J2. For the remaining movement of the segmental gear 88 the housing lV 2 will act through pawl M to prevent further rotation of the gear K2 and rod J" so that during this remaining movement the plunger tube 87 will be rotated with respect to the rod J thus acting through bevelled gears 90 and 91 to advance the direction ofV nozzle 89. By regulating the set screw 93 the increment of advance of the nozzle may be varied. The parts are then in position for the next cycle which will include. first tracing a vertical path by the blower jet down the tube sheet substantially parallel with the preceding and spaced therefrom a distance determined by the relative movement between the gears 90 and 91.

The proper length of travel back and forth of segmental'gear 88 may be readily. obtained by the ratio of the gears 84a and 846; also the ,structure of the yolre 82, and the size of pulley l 9.

It will be apparent from the that I have providedv means for automatically cleaning the locomotive iiue sheet and boil-er tubes after a predetermined distance has been travelled by the locomotive. By reason of the reduction gears and the pulleys shown the period between the blowing operations may be mace to correspond with any desired distance of travel of the locomotive. It will further be noted that the locomotive supplies the power from a moving part thereof` for operating or reciprocating the blower. t will further be noted that I have provided means for shutting olif the supply of cleaning iiuid to the blower, after a predetermined elapse of time after the cam 84 has unseated the valve 86.. If desired the face of the cam may be varied to further regulate the time of contact with the valve stem 85 to thus vary the period of supply of cleaning iiuid to *L blower. Such period may be foregoing tu@ further regulated by the ratio of the various gears comprising the reduction gearing Ii. I have furthermore provided means for manually controlling the operation of the blower independently of the distance travelled by the locomotive.

Instead of providing a reciprocating, retracting, shown in Figur-es 10V to 14 I may provide other types of blowers, for example in Fig-y ures 15, 16, and 17, I have shown a nonretracting type of blower adapted to. be rotated byI power derived from a moving partA and projecting type of blower asY i sages 96.

of the locomotive. In these figures the blower G is provided with a rotatable portion R formed with the radial walls 95 to provide a plurality of cleaning fluid conductin pasrlhe forward end of each o these passages terminates in a nozzle 97, the axes of the nozzles' being relatively different whereby, as the portion It is rotated the nozzles will be successively directed toward different portions of the flue sheet,'cleaning fluid issuing from the nozzles during the time that they are thus directed toward the flue sheet. Since the axis of each successive nozzle differs in predetermined amount from the axes of the Vother nozzles it will be apparent that each nozzle will trace a vertical line for the height of the flue sheet, the successive lines traced being parallel and relatively spaced whereby the desired portion of the tube sheet may be cleaned by a nozzle.

In o-rder to limit the passage of the cleaning Huid to such of the nozzles as are directed toward the iue sheet, a port 98 is provided which successively communicates with the desired passages 96 by reason of the passage ports 99.

For rotating the blower the body R is provided at its rear with a shaft 100 upon which is fixedly mounted a pulley 101 adapted to be rotated by the actuatingr belt 78 from the reduction gearing L as aforesaid.

What I claim as my invention is:

l. In a locomotive, the combination-with a moving part thereof, of a boiler cleaner movable for cleaningparts of the boiler, and a driving connection between said moving part and said boiler cleaner for moving the latter from the former. Y

2. In a locomotive, the combination with a moving part thereof, of a blower movable for cleaning parts of the boiler, and means for applying power from saidmoving part of the locomotive to the blower for moving said blower. y

3. In a locomotive, the combination with a moving part thereof, of a blower movable for cleaning parts of the boiler, and means for applying power from said moving part of the locomotive t the blower for periodically moving said blower.

l.. In combination with a locomotive provided with a ground wheel, a boiler cleaner, and a geared connection between the ground wheel and boiler cleaner whereby power is transmitted from the ground wheel to the boiler cleaner for operating theboiler cleaner.

5. In combination. with a locomotive, a blower having a discharge nozzle Ladapted to be moved for cleaning parts of the boiler, and means for applying power from a movable part of said locomotive to said blower for moving said nozzle.

6. In combination with a locomotive, a blower having a discharge nozzle adapted to be moved for cleaning parts of the boiler,

and means for applying power from a movable part of said locomotive to said blower for periodically and automatically moving said nozzle.

7. In combination `with a locomotive, a

moving part of said locomotive to said blower nozzle for moving said nozzle.

S. In combination with a locomotive, a blower having a discharge nozzle adapted to be moved for directing a jet of cleaning fluid against parts of the locomotive boiler to be cleaned, and means for automatically applying power at predetermined intervals from a moving part of said locomotive, to said blower nozzle for moving said nozzle, said intervals being dependent on the distance travelled by the locomotive.

9. In combination with a locomotive, a blower having a discharge nozzle adapted to be moved fordirecting a jet of cleaning fluid `against parts of the locomotive boiler to be cleaned, means for automatically applying power at predetermined intervals from a moving part of said locomotive to said blower nozzle for moving said nozzle, and means for automatically applying cleaning fluid to said blower at the times when the said nozzle is being moved.

10. In combination with a locomotive, a blower having a discharge nozzle adapted to be moved for directing a et of cleaning fluid against parts of the locomotive boiler to be cleaned, reduction gearing, and means for .applying power from a moving part of the locomotive through the reduction gearing for kmoving said nozzle.

l1. In combination with a locomotive, a blower having a discharge nozzle adapted to be moved for directing a jet of cleaning fluid against parts of the locomotive boiler to be cleaned, reduction gearing, and means for applying power from a moving` part of the locomotive through the reduction gearing for moving said nozzle, said means automatically acting after the locomotive has travelled a predetermined distance.

12. In combination `with a locomotive, a blower having a discharge nozzle, a rotatable element, means connecting the said element and nozzle for moving the nozzle, and a mechanism for transmitting power from a moving partk of the locomotive to said rotatable element for rotating the same.

13. In combination with a locomotive, a blower having a discharge nozzle, a rotatable element, means connecting the said element and nozzle for moving the nozzle, and a mechanisin for transmitting power from a moving part of the locomotive to said rotatable element for rotating the same, said mechanism adapted to rotate said element in the same direction for movements of the locomotive, either forward or in reverse.

14. In combination with a locomotive, a

blower having a movable discharge nozzle for directing a jet of cleaning fluid against to said blower, means for automatically uliseating said valve after the locomotive has travelled a predetermined distance, and means for supplying power from a movable part of the locomotive for moving said nozzle at the times when the cleaning lluid is being supplied to said blower.

'15. In ycombination with alocomotive, a `blower fha-ving =a movable discharge nozzle Yfor:directing a vjet of cleaning `fluid against parts of the boiler to be cleaned, a cleaning fluid supply pipe for conducting `cleaning `fluidtoy said blower, a valve for controlling the passage of cleaning fluid from said pipe to -said blower, Imeans for automatically unseating` said valve after the locomotive has :travelled a predetermineddistance, means for shutting oil' the delivery of cleaning lluid to said blower after a predetermined interval from the time of initial supply, and means for supplying power from a movable part of 'the locomotive for moving said nozzle at lthe times when the cleaning fluid is being sup- 'pl-ied tosaid blower.

1G. In combination with a locomotive, a blower having a movable discharge nozzle Vfor directing` Va jet Vof cleaning lluid against partsof the boiler to be cleaned, a cleaning fluid -zsupply'fpipe for aconducting cleaning fluid to sad'blower, a valve 'for controlling the passage of cleaning fluid from said pipe lto said "blower, means for utomatically unseatling said vvalve after the locomotive hastrav- -ellcd a predetermined distance, a slow-acting device for automatically shutting ofi' the supply of cleaning fluid to the blower after a predetermined'time has .elapsedafter the un seating of said v,alve,'and .means for ,supplying power from a movable part of the locomotive for moving said nozzle at the times when the cleaning :fluid being ysupplied to said blower.

*17. in Jcombination with a locomotive, a

blo-werhaving ya movable dischargenozzle for f' ldirecting a -yet of cleaningflindagainst parts `of the `boiler :to be cleaned, a cleaning A.fluid supply 'pipe `for conducting cleaning fluid to said blower, valve for Vcontrolling the lpassage lof-cleanin-g "fluid from Asaid pipe-to said blower, means for automatically unseating said `valve alter the locomotive vhas travelled -af-p'redetermineddistance, nply-ing power from a :movable part of the :locomotive .for moving said nozzle at the and means for sup times 4when the ,cleaning fluid :is being :sup-

Vfluidto said blower,

plied to'said blower, and manually controlled means for unseating said valve independently of the said automatic means.

18. In combination with a locomotive, a

blower having a movable discharge nozzles Y- for directinoP a 'et of cleaninO fluid ao'ainst parts of the boiler to be cleaned, a cleaning fluid vsupply pipe for conducting cleaning to said blowen-reduction gearing, means for transmitting power from la moving part of the locomotive to said reduction gea-ring, means controlled bythe reduction gearing v.for VVcontrolling the supply of cleaning fluid through said supply pipe, means connected Ywith the reduction gearing for moving said nozzle, said last named means including a clutch, and means dependent uponthe supply of cleaning fluid -to said blower for operating said clutch.

19. In combination with .a locomotive, :a blower having a movable Adischarge lnozzle for directing a jet of cleaning fluid against :parts vof the boiler' to be cleaned, a cleaning fluid supply .pipe for conducting cleaning reduction gearing, means for transmitting power from a moving part of the locomotive to said reduction gearing`r means controlled by the .reduction gearngifor controlling `the supply of cleaning fluid throughsaid supply pipe, means connected with thereduction gearing for moving said nozzle, said last named mea-ns including a clutch, andcleaning fluid operated means `dependent upon the supply of cleaningifluid to said blower for operating said clutch.

20. In combination with a locomotive, .-a blower having a .movable discharge nozzle for directing a jet of cleaning fluid against pa-rtsof ythe .boiler to be cleaned, a cleaning ffluid supply pipe for conducting cleaning fluid to vsaid blower, reduction gearing, means for transmitting'A power vfrom a moving part oa 'the locomotive to said reduction gearing, a valve for controlling the passage vof cleaning fluid lfrom said pipe to said blower, a valve stem, a cam movable by said reduc-tion gearing for periodica'llyacting on said valve stem fto unseat Vsaid valve. driving vmean-s connected with lthe said reduction gearing for moving the nozzle, a cleaning fluid operated clutch, and means for establislii adriving connectionithrough .said clutch when.

.cleaning l,fluid is 'being 4delivered to-said blow AIL10 cally acting wall water leg, a blower housed within said water leg and provided with a nozzle adapted to be projected into the lirebox of the locomotive Jfor cleaning parts of the boiler, a source of cleaning fluid, means for transmitting power from a moving part of the locomotive to move sail nozzle in its projected position, and means ing a side for automatically periodically acting to conduct cleaning fluid from said source to said blower for projecting the blower nozzle and causing a discharge of cleaning fluid from said nozzle.

23. In combination with a locomotive having a side wall water leg, a blower housed. within said water leg and provided with a nozzle adapted to be projected into the firebox of the locomotive for cleaning parts of the boiler, a source ot cleaning fluid, means controlled by the distance travelled by the locomotive for supplying cleaning fluid from said source to said blower nozzle, and for transmitting power Jfrom a moving` part of the locomotive to said nozzle for moving the nozzle during the discharge of cleaning fluid therefrom.

24. In combination with a locomotive having a side wall water leg, a blower housed within said water leg and provided with a nozzle adapted to be reciprocated for directim; the nozzle toward parts of the boiler to be cleaned, a source of cleaning fluid for supplying cleaning fluid to said nozzle, and means for tra ismitting power from a moving part of the locomotive to reciprocate said nozzle.

25. In combination with a locomotive having a side wall water leg. a'blower housed, within said water leg, and .having a nozzle adapted to be rotated to discharge a jet of cleaning` fluid adjacent parts of the boiler to be cleaned, a source of cleaning fluid, and means for transmitting power from a movingpart of the locomotive to rotate said blower nozzle.

26. In combination with a locomotive having a side wall water leg, a blower housed within said water leg` and having a nozzle adapted to be rotated to discharge a jet oi cleaning fluid adjacent parts of the boiler to be cleaned, a source of cleaning fluid, means for transmitting` power from a moving part of the locomotive to rotate said blower nozzle, and means for automatically periodito conduct cleaning` fluid from said supply to said blower nozzle.

27. In combination with a locomotive having a side wall. water leg. a blower housed within said water leg and having a nozzle adapted to be rotated to discharge a jet of cleaning fluid adjacent parts of the boiler to be cleaned, a source of cleaning fluid, means controlled by the distance travelled by the locomotive tor supplying cleaning fluid from said source to the blower, and transmitting power from a moving part of the ylocomotive to rotate said blower nozzle.

28. In a locomotive, they combination with I a moving part thereof, of arotatable blower element for cleaning parts of the boiler, and a driving connection between said moving part and said blower element for rotating the latter from the former.

29.l In a locomotive, the combination with a moving part thereof, of a movable blower element for cleaning parts of the boiler, and means for transmitting power from the said moving part of the locomotive to said blower element Jlor moving the same, said means being operable to always move said blower element in the same direction irrespective of the direction of movement of the said moving part of the locomotive.

30. In combination with a locomotive, a movable blower element for directing jets of cleaning fluid adjacent parts of the boiler to be cleaned, a valve for controlling the passage of cleaning fluid to said blower element, manually controlled means Jror unseating said valve, and means for supplying power from a movable part of the locomotive for moving said blower element.

3l. In a device of the character described, a blower element, a main valve for controlling the flow of cleaning fluid to said blower element; fluid pressure actuated means for actuating said main valve,.an auxiliary valve for controlling the flow of cleaning fluid to said pressure actuated means, means for periodicallv automatically opening said auxiliary valve, and means automatically operable to cut oil the supply of fluid under pressure to said pressure actuated means a predetermined time after the opening of said auxiliary valve.

' 32. In a device of the character described, a blower element, a main valve for controlling the llow of cleaning fluid to said blower element, a piston connected to said main valvev for actuating the latter, an auxiliary valve for controlling the flow of cleaning fluid to said piston. and means automatically operable to cut olf the supply of cleaning fluid `to said piston a predetermined time after the opening ot said auxiliary valve.

33. In combination with a locomotive, a blower element, a main valve torcontrolling the flow of cleaning fluid to said blower element, an auxiliary valve adapted when open to effect an opening of said main valve, means for periodically opening said auxiliary valve in dependence upon the distance traveled by the locomotive, and means automatically operable to effect a closing of said main valve a predetermined time after the opening of said auxiliary valve.

In testimony whereof I aflix my signature.

NORMAN L. SNOW. 

